Finding the Fourth Proportional to 2,450.45, 3,674.89 and 806.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,450.45 : 3,674.89 = 806.61 : x
2. Step 2: Convert to fraction form
   2,450.45/3,674.89 = 806.61/x
3. Step 3: Cross multiply
   2,450.45x = 3,674.89 × 806.61
4. Step 4: Simplify right side
   2,450.45x = 2,964,180.62
5. Step 5: Solve for x
   x = 2,964,180.62/2,450.45
6. Step 6: Final answer
   x = 1,209.65